http://www.perlmonks.org?node_id=76235


in reply to parsing date string

Though Date::Manip is certainly able to do this kind of operations, I would not recommand using it. In fact neither the author of this module:
Is Date::Manip the one you should be using? In my opinion, the answer is no about 90% of the time. This sounds odd coming from the author of the software, but read on.
Date::Manip is written entirely in perl. It's the most powerful of the date modules. It's also the biggest and slowest.

There are plenty of specialized module in the Date::* hierarchy that can fill the bill. For instance, I would use Time::Local for this kind of job, but I'm sure one could find a better suited module (maybe Date::Format?). Anyway here's a stab at it:

use Time::Local; my $time1 = '010101112245'; my $time2 = '010101114556'; foreach ($time1, $time2){ my @t = $time1 =~ /(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)/; @t = reverse @t; $_ = timelocal(@t); } print "Difference is: ", ($time1 -$time2), "\n";

Disclaimer: Code barely tested, not to be used to operate nuclear reactors.

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